package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;

/**
 * 执行DML语句--DELETE语句
 */
public class JDBCDemo4 {
    public static void main(String[] args) throws Exception {
        //需求:删除id为1的用户信息
//        Class.forName("com.mysql.cj.jdbc.Driver");
//        Connection conn = DriverManager.getConnection(
//                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
//                "root",
//                "root"
//        );
        Connection conn = DBUtil.getConnection();
        Statement statement = conn.createStatement();
        /*
            DELETE FROM userinfo
            WHERE id=1
         */
        String sql = "DELETE FROM userinfo " +
                     "WHERE id=1";
        int num = statement.executeUpdate(sql);
        System.out.println(num>0?"删除成功":"删除失败");
        conn.close();
    }
}







